HelenOS sources

RCTL_EN           980 uspace/drv/nic/e1k/e1k.c 	if (E1000_REG_READ(e1000, E1000_RCTL) & (RCTL_EN))
RCTL_EN           995 uspace/drv/nic/e1k/e1k.c 	    E1000_REG_READ(e1000, E1000_RCTL) | (RCTL_EN));
RCTL_EN          1007 uspace/drv/nic/e1k/e1k.c 	    E1000_REG_READ(e1000, E1000_RCTL) & ~(RCTL_EN));
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